Synthesis of CF3-containing α-alkynyl-α-aminophosphonates by Sonogashira cross-coupling reaction
摘要:
An efficient route to new alpha-CF3-alpha-aminophosphonic acid derivatives bearing an arylalkynyl moiety at the alpha-carbon atom has been developed. The method is based on palladium-catalyzed cross-coupling of the corresponding alpha-propargyl (ethynyl) alpha-aminophosphonates with aryl iodides to afford the aminophosphonic acid derivatives with an internal triple bond that is suitable for further modifications. (C) 2011 Elsevier B.V. All rights reserved.
Synthesis of functionalized α-CF3-α-aminophosphonates via Cu(I)-catalyzed 1,3-dipolar cycloaddition
摘要:
A convenient method for the preparation of alpha-CF3-alpha-aminophosphonates bearing alkynyl group at the a-carbon atom has been described. New alkynylphosphonates have been further utilized in the synthesis of functionalized triazole-containing alpha-CF3-alpha-aminophosphonates via copper-catalyzed (3+2)-cycloaddition to different organic azides. (C) 2009 Elsevier B.V. All rights reserved.
Click-chemistry approach to isoxazole-containing α-CF3-substituted α-aminocarboxylates and α-aminophosphonates
作者:Daria V. Vorobyeva、Natalya M. Karimova、Irina L. Odinets、Gerd-Volker Röschenthaler、Sergey N. Osipov
DOI:10.1039/c1ob06040f
日期:——
A convenient strategy for the synthesis of isoxazole-containing α-CF3-substituted α-aminocarboxylates and α-aminophosphonates have been developed. The method is based on copper-catalyzed 1,3-dipolar cycloaddition of different aromatic nitrile oxides to functionalized acetylenes.
An efficient approach to a new family of highly functionalized P analogues of alpha-trifluoromethyl-substituted phenylalanine and its homologues using ruthenium-catalyzed intermolecular ene-yne metathesis as a key step of the reaction sequence has been developed. The method includes cross metathesis of alpha-alkynyl-alpha-trifluoromethyl-alpha-aminophosphonates with alkenes under catalysis by second-generation Grubbs carbene complex to afford the corresponding aminophosphonates with 1,3-diene backbone followed by one-pot Diels-Alder reaction-aromatization step.
Synthesis of CF3-containing tetrapeptide surrogates via Ugi reaction/dipolar cycloaddition sequence
作者:Daria V. Vorobyeva、Nadezhda V. Sokolova、Valentine G. Nenajdenko、Alexander S. Peregudov、Sergey N. Osipov
DOI:10.1016/j.tet.2011.11.037
日期:2012.1
A convenient synthetic pathway to novel functionalized tetrapeptides containing the 1,2,3-triazole moiety is described. The target molecules were obtained by the reaction of fluorinated alpha-amino acids or alpha-aminophosphonates with azidopeptides via Cu(I)-catalyzed Huisgen cycloaddition reaction (click chemistry). The synthesized tetrapeptides may find important applications in biomedical chemistry as potential drugs. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis of functionalized α-CF3-α-aminophosphonates via Cu(I)-catalyzed 1,3-dipolar cycloaddition
作者:Daria V. Vorobyeva、Natalya M. Karimova、Tamara P. Vasilyeva、Sergey N. Osipov、Grigory T. Shchetnikov、Irina L. Odinets、Gerd-V. Röschenthaler
DOI:10.1016/j.jfluchem.2009.12.003
日期:2010.3
A convenient method for the preparation of alpha-CF3-alpha-aminophosphonates bearing alkynyl group at the a-carbon atom has been described. New alkynylphosphonates have been further utilized in the synthesis of functionalized triazole-containing alpha-CF3-alpha-aminophosphonates via copper-catalyzed (3+2)-cycloaddition to different organic azides. (C) 2009 Elsevier B.V. All rights reserved.
Synthesis of CF3-containing α-alkynyl-α-aminophosphonates by Sonogashira cross-coupling reaction
作者:Maria A. Zotova、Tamara P. Vasilyeva、Alexander S. Peregudov、Sergey N. Osipov
DOI:10.1016/j.jfluchem.2011.07.028
日期:2012.3
An efficient route to new alpha-CF3-alpha-aminophosphonic acid derivatives bearing an arylalkynyl moiety at the alpha-carbon atom has been developed. The method is based on palladium-catalyzed cross-coupling of the corresponding alpha-propargyl (ethynyl) alpha-aminophosphonates with aryl iodides to afford the aminophosphonic acid derivatives with an internal triple bond that is suitable for further modifications. (C) 2011 Elsevier B.V. All rights reserved.